I'm not surprised by my discovery here; I know from previous studies which parts of the brain control various actions and thoughts, so it was logical to determine that these centers of violence and emotion should be altered in some way. However, I was intrigued by the fact that different types of killers display different brain abnormalities. While it makes sense to me now, it's quite interesting that various effects on the brain can elicit such a wide variety of responses. It is also interesting to note that no single factor can make someone a murderer; if an individual has brain damage that predisposes him to a violent life, a good childhood could counteract this. Aside from what makes a serial killer, once an individual is established as one, I'm also interested in what they think about what they do. do and while they do it. I'm interested in knowing what thoughts run through their minds as their victims beg for their lives. Do they enjoy the agony of their victims? Do they feel nothing but anger? No matter where their motivation comes from, DNA or home life, their thought process, reasoning for their victims and various patterns piqued my interest. My third question is: what does the general psychology of a killer consist of? According to the article "What a Killer Thinks," by Dave Cullen, there are three categories of killer motivations: the psychopath, the raving lunatic, and the depressed. In serial murders, the motivation falls into the psychopath category. The psychology of these people generally is that they simply love to kill or feel the need to kill, which is why they kill so many people. According to the article, they state that “They appear to be born without the capacity for empathy,...... middle of paper......ks CitedCullen, Dave. "What does a murderer think." Newsweek6 August 2012: 1. Print.King, Stephen. “Because we want horror stories.” Models for writers. Ed. Denise B. Wydra, Karen S. Henry, Marcia Cohen, Elise S. Kaiser, Shuli Traub. Boston: Bedford/St. Martin, 2010. 504-507. Print.Leung, Julietta. “The Personality Profile of a Serial Killer.” bxscience.edu. Np, May 24, 2004. Web. June 21, 2014. Pemment, Jack. "What would we find wrong with the brain of a serial killer? | Psychology today." Psychology Today: Health, Help, Happiness + Find a Therapist. Psychology Today, April 5, 2013. Web. June 20, 2014. Scott, Shirley L. "Childhood Events: What Makes Serial Killers Tick? - The Crime Library - Crime Library." Crime Library - Crime news and stories. Turner Entertainment Networks and Web. June 20, 2014.Spence, Sean. “Bad or crazy?” New Scientist 20 March 2004: 1. Print.